Amygdalin is hydrolysed by two enzymes (amygdalin hydrolase and prunasin hydrolase) most successfully in crushed, moistened kernels, leading to the formation of HCN and glucoseAn antidotal blend of inhaled amyl nitrate and intravenous sodium nitrite and sodium thiosulfate will often be indicated. The IPCS/CEC (1993) review of antidotes for cyanide